3751865 has 16 divisors (see below), whose sum is σ = 4889808. Its totient is φ = 2747136.

The previous prime is 3751861. The next prime is 3751871. The reversal of 3751865 is 5681573.

It can be written as a sum of positive squares in 8 ways, for example, as 395641 + 3356224 = 629^2 + 1832^2 .

It is a cyclic number.

It is not a de Polignac number, because 3751865 - 2² = 3751861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3751861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12659 + ... + 12951.

It is an arithmetic number, because the mean of its divisors is an integer number (305613).

Almost surely, 2^3751865 is an apocalyptic number.

It is an amenable number.

3751865 is a deficient number, since it is larger than the sum of its proper divisors (1137943).

3751865 is a wasteful number, since it uses less digits than its factorization.

3751865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

The product of its digits is 25200, while the sum is 35.

The square root of 3751865 is about 1936.9731541764. The cubic root of 3751865 is about 155.3873765342.

The spelling of 3751865 in words is "three million, seven hundred fifty-one thousand, eight hundred sixty-five".